<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <meta http-equiv="X-UA-Compatible" content="ie=edge">
    <title>JavaScript初体验</title>
    <style></style>
    <!-- 2.内嵌式的js -->
    <!-- <script>
        alert("我是你爸爸，哈哈");
        alert("我是你爸爸，哈哈");
    </script> -->
    <!-- 3.外部的js  script是双标签-->
    <script src="01_my.js"></script>
    
</head>
<body>
    <!-- 1.行内式的js，直接写到元素的内部 -->
    <input type="button" value="唐伯虎" onclick="alert('秋香姐')">
</body>
</html>